I’ve been using Wyze cameras for a while now and have noticed something interesting about their microSD card support. While the official documentation mentions that the maximum supported card size is 32GB, I’ve been curious about why this limit exists. After all, FAT32, which is commonly used, supports partitions up to 2TB and individual files up to 4GB. Since Wyze cameras don’t handle files anywhere near these limits, it seems puzzling why there’s such a strict cap.
I’ve read that larger cards using exFAT are recognized but come with warnings about stability. This is confusing because exFAT is generally more robust and faster than FAT32. If exFAT is better, why would it be less stable in this context? I’ve also heard that formatting larger cards to FAT32 is possible, but Wyze’s documentation suggests this might lead to issues. I’m not sure if this is due to the Linux kernel version used in their firmware or something else entirely.
Another angle I’ve considered is write leveling. Larger NAND capacities should, in theory, improve longevity by spreading writes more evenly across the card. This makes me wonder if Wyze’s limit is more about firmware constraints rather than technical necessity. I’d love to hear from others who might have tested larger cards or have insights into how the firmware handles storage.
If anyone has experience with forcing larger cards onto FAT32 or has seen data corruption, I’d appreciate hearing about it. Understanding the root cause here could help clarify whether this is a genuine limitation or something that could be addressed in future firmware updates.